You've seen it all over social media. Your friends dump buckets of ice water on their heads to raise awareness and funds for the ALS Association.While a fatal and devastating disease, ALS is not as widespread as illnesses such as heart disease. Yet, the #icebucketchallenge has funnelled more than $20 million to the ALS association in the last month.

A recent article by Vox highlighted eight diseases in the U.S. and compared how deadly they are to how much money is raised to fight them and found the diseases killing more Americans aren't necessarily the ones getting the most money.

Click through the slideshow above to learn about how many people these eight diseases are killing and how much funding each of them receives.